CODAR Real time wave data

Coastal Ocean Dynamics Applications Radar(CODAR) Real-Time Sea State
Measurements are available online.

Data includes:
Significant Wave Height
Peak Wave Period

CODAR is used to measure the surface currents of the coastal ocean. A
transmitter sends out a radio frequency that bounces off the ocean
surface and back to areceiver antenna. Using this information and the
principles of the Doppler shift, CODAR is able to calculate the speed
and direction of the surface current. These calculations are made at
about every half mile across the surface and extend as far as about
twenty miles offshore.

沿海海洋动力学应用雷达（Coastal Ocean Dynamics Applications Radar，CODAR）实时海态测量数据现已可在线获取。

该数据集包含以下内容：
有效波高（Significant Wave Height）、峰值波周期（Peak Wave Period）

CODAR 主要用于测量沿海海洋的表层海流。其发射机发射射频信号，该信号经海面反射后返回接收天线。结合上述信息与多普勒频移（Doppler shift）原理，CODAR可计算出表层海流的流速与流向。此类计算以约每半英里为间隔覆盖观测海面，探测范围最远可延伸至离岸约20英里的海域。